Encyclopedia > Concave lens

Article Content

Concave lens

A concave lens is a lens that is curved inward: the ends are wide, the middle is small. Light passing through refracts focused. Concave lenses can be used in telescopes, microscopes and glasses.

Compare: Convex lens

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Great River, New York

... 11.9 km² (4.6 mi²) of it is land and 1.2 km² (0.4 mi²) of it is water. The total area is 8.91% water. Demographics As of the census of 2000, ...